/**
 * create by yongli on 2021-08-20 15:22
 */

public class Aes {


    public static void main(String[] args) {

        // 12进制数
        byte by = 0x12;
        Character c ='C';
        String cs ="C";
        byte[] bytes  =cs.getBytes();
        for(byte b:bytes){
            System.out.println(Integer.toHexString(b));
        }
    }
}
